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Self Adhesive Roofing Asphalt Shingles Underlayment Secondary Waterproof Barrier

Place of Origin Hebei, China
Brand Name Jianda
Certification CE, ROHS
Model Number YEP 500
Minimum Order Quantity 100 rolls
Price for discussion
Packaging Details packed in roll with customer's reqired wrapping paper
Delivery Time 10--15 work days
Payment Terms L/C, T/T
Supply Ability 1000 rolls per day

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Product Details
Type Waterproof Membrane Model Number YEP 500
Gram Weight 500g/m2 Width 1m
Length 25m, 30m Weight 12.5kg/roll
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underlayment for asphalt shingles


paper under shingles

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Product Description

YEP 500 Self-adheisve Roofing Felt Asphalt Shingles Underlayment Roll Membrane





YEP 500 self-adhesive roofing felt asphalt shingles underlayment roll membrane is a layer used on slope roof beneath asphalt shingles or tiles.  the function is to protect the thermal insulation material and the construction structure from the effects from the weather.  The roof underlay acts as a secondary waterproof barrier, which leads to condensate water away from the underlayment.

Self Adhesive Roofing Asphalt Shingles Underlayment Secondary Waterproof Barrier 0



1.Surface coverage with high tear and tensile strength for wood substrates.


2.A sticker edge with bitumen adhesive and an exposed edge.


3.Made of a polyester backing that is impregnated and coated with SBS-modified asphalt.


4.it is excellent vapor permeable properties make it can be constructed on damp surface, palisade structure internal water vapor flowing rapidly and effectively avoid mould and condensing formation.




it is used as the underlayment of cement tile, painted pottery watts, asphalt shingle and wood structure roofing.

also suitable for all kinds of architectural roofing, walls, underground waterproof and damp proof project.
Application Key Points:
1. the roof should be dry, clean engough , with no stones on it
2. use nails fasten the membrane on roof, density should be 30 nails per square meter
3. the roll surface should be smooth withot folds when applied on the roof.
4. the width of junction for the same layer should be no less than 50mm
1. store the roofing underlayment shold avoid from sun, rain , wind or snow
2.temperature should not be 50degree for transportation or storage.
Test Report data sheet:
Items Result SPECIFICATION Comments
Tensile(Length) (N) 515.10 581.60 496.90 506.70 519.60 485±20%(388 to 592)  
Tensile(Transverse) (N) 345.50 368.50 357.60 378.90 376.40 340±20%(272 to 408)  
Elongation(Length)% 47.10 45.80 43.50 41.20 45.90 33±20%(26.4 to 39.6)  
Elongation(Transverse)% 35.90 39.60 38.60 40.50 39.40 38±20%(30.4 to 45.6)  
Resistance to tearing (N) 104.80 107.30 98.80 81.00 105.00 ≥100N Length
Resistance to tearing (N) 125.60 113.90 109.60 106.20 101.20 ≥100N Transverse
Watertightness   Tight  
Dimension stability   ≤2%  
Cold Flexibility   No cracks or fractures  
Mass 572.00 569.00 583.00 576.00 559.00 545±5%
(517.75 to 572.25)
Thickness 0.98 0.96 0.97 0.96 0.95